what kind of rifle is this?

can anybody give me any info on what kind of rifle this is.....bought it at a yardsale and the guy could'nt give much info on it...just said he bought it several yrs ago and never shot it....it has the numbers 287 on the barrel with a star and some kind of symbol inside the star....the butt plate says white line pachmaur gun works.....the stock also has a black diamond shape inlay on it